------------[ cut here ]------------
WARNING: CPU: 0 PID: 60 at block/blk-mq.c:4133 blk_mq_release+0xf0/0x27c block/blk-mq.c:4133
Modules linked in:
CPU: 0 PID: 60 Comm: kworker/u4:3 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026
Workqueue: nvme-delete-wq nvme_delete_ctrl_work
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : blk_mq_release+0xf0/0x27c block/blk-mq.c:4133
lr : blk_mq_release+0xf0/0x27c block/blk-mq.c:4133
sp : ffff80001fa17840
x29: ffff80001fa178b0 x28: 0000000000000000 x27: 1ffff00002b73fc4
x26: 1fffe00019d995ea x25: 1fffe00019d995f1 x24: 0000000000000001
x23: dfff800000000000 x22: ffff700003f42f08 x21: ffff80001fa17840
x20: ffff0000defd4aa8 x19: ffff0000ceccae50 x18: 1fffe00033e7277e
x17: ffff80001537d000 x16: ffff800011b90080 x15: 0000000000000000
x14: 0000000000000406 x13: 0000000000ff0100 x12: ffff800017d39100
x11: ff0080000a7ce740 x10: 0000000000000000 x9 : ffff80000a7ce740
x8 : ffff0000c62b8000 x7 : ffff800011aa7e88 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000002
x2 : 0000000000000008 x1 : ffff800011ceedc0 x0 : ffff0000defd4800
Call trace:
 blk_mq_release+0xf0/0x27c block/blk-mq.c:4133
 blk_release_queue+0x108/0x1b0 block/blk-sysfs.c:774
 kobject_cleanup lib/kobject.c:681 [inline]
 kobject_release lib/kobject.c:712 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x2a8/0x41c lib/kobject.c:729
 blk_put_queue+0x20/0x30 block/blk-core.c:269
 nvme_free_ctrl+0xc4/0x46c drivers/nvme/host/core.c:5196
 device_release+0x94/0x1b4 drivers/base/core.c:-1
 kobject_cleanup lib/kobject.c:681 [inline]
 kobject_release lib/kobject.c:712 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x2a8/0x41c lib/kobject.c:729
 put_device+0x28/0x40 drivers/base/core.c:3820
 nvme_put_ctrl drivers/nvme/host/nvme.h:718 [inline]
 nvme_uninit_ctrl drivers/nvme/host/core.c:5172 [inline]
 nvme_do_delete_ctrl+0x1d8/0x1f4 drivers/nvme/host/core.c:219
 nvme_delete_ctrl_work+0x20/0x30 drivers/nvme/host/core.c:227
 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292
 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439
 kthread+0x254/0x2e0 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850
irq event stamp: 439140
hardirqs last  enabled at (439139): [<ffff8000088f5614>] kasan_quarantine_put+0xc4/0x200 mm/kasan/quarantine.c:242
hardirqs last disabled at (439140): [<ffff800011b8c2bc>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (438508): [<ffff8000118506b0>] spin_unlock_bh include/linux/spinlock.h:396 [inline]
softirqs last  enabled at (438508): [<ffff8000118506b0>] batadv_nc_purge_paths+0x2f8/0x374 net/batman-adv/network-coding.c:471
softirqs last disabled at (438506): [<ffff800011850490>] spin_lock_bh include/linux/spinlock.h:356 [inline]
softirqs last disabled at (438506): [<ffff800011850490>] batadv_nc_purge_paths+0xd8/0x374 net/batman-adv/network-coding.c:442
---[ end trace 0000000000000000 ]---